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Gully erosion is a dominant process causing soil loss in the Yuanmou Valley of Yunnan Province, China. Soil mass failure is a common process involved in gully development. The development of the gully and the occurrence of mass failure are interdependent and mutually promotive, but mass failure types have not been very well understood. In this study, we identify the main types of soil mass failure...
The collapse of overhanging layers of the heads and sidewalls of gullies accelerates gully development. Thus, the development features of the collapse of overhanging layers must be understood. In this study, the process of collapse of overhanging layers in man-made soil bodies containing different soil layers was investigated by flow scouring experiments. A soil body composed of a lower sandy layer...
Lhasa is a crucial agricultural region of the Tibetan plateau for local grain and vegetable supplies. Therefore, to sustain soil productivity, it is important to understand how agricultural management practices can cause changes in soil properties. Based on the information from the soil survey conducted in the late 1980s, we selected and sampled the following sites in the summer of 2007: 17 sites...
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